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28 January, 15:58

The height (h) of a fireball launched from a Roman candle with an initial velocity of 64 feet per second is given by the equation h (t) = - 16t^2 + 64t, where t is time in seconds after launch. Use the graph of this function to answer the questions. Estimate the time when the fireball is at its maximum height.

A. 2.3 seconds

B. 2 seconds

C. 0 seconds

D. 4 seconds

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  1. 28 January, 16:12
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    Answer: C or 2 seconds.

    Step-by-step explanation:

    To find the vertex in a standard form equation: (-b/2a, f (-b/2a))

    plug it in: - 64/2*-32 = 2
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